Laser & Optoelectronics Progress, Volume. 62, Issue 5, 0512006(2025)

Application of Deep Learning Algorithm for Automatic Identification of Key Points for Laser Beam Pointing

Yulong Suo1,2、*, Haifeng Zhang1,3, Bao Zhang4, Jiefeng Sun1,2, Si Qin1, and Mingliang Long1
Author Affiliations
  • 1Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China
  • 2School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3Key Laboratory of Space Object and Debris Observation, Chinese Academy of Sciences, Nanjing 210008, Jiangsu , China
  • 4People's Liberation Army 61711, Kashi 844000, Xinjiang , China
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    To enable real-time adjustments of laser beam pointing in satellite laser ranging systems with bistatic units, this study proposes a method for real-time recognition of laser beam pointing key points using a deep learning model. By collecting and labeling numerous successful satellite observation laser beam images and applying data augmentation, this paper establishes a comprehensive laser beam pointing image dataset. The YOLOv8-Pose deep learning algorithm is utilized for model training, and ultimately applying the model to satellite laser observations. Compared with traditional edge extraction methods for laser beam images, the proposed algorithm demonstrates excellent adaptability, achieving an impressive mean average precision of 99.39%. In addition, the proposed algorithm addresses the challenge of accurately recognizing laser beam pointing key points in relatively poor weather conditions, paving the way for an automated satellite laser ranging system.

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    Yulong Suo, Haifeng Zhang, Bao Zhang, Jiefeng Sun, Si Qin, Mingliang Long. Application of Deep Learning Algorithm for Automatic Identification of Key Points for Laser Beam Pointing[J]. Laser & Optoelectronics Progress, 2025, 62(5): 0512006

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: May. 11, 2024

    Accepted: Jul. 12, 2024

    Published Online: Feb. 20, 2025

    The Author Email:

    DOI:10.3788/LOP241257

    CSTR:32186.14.LOP241257

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